Gas-engine.



No. 639,683. Patehted Dec. I9, I899.

A. H. NEALE.

GAS ENGINE.

(Application filed Aug. 15, 1898.) (No Mo el 4 Sheets8heet l.

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THE NORRIS PETERS co, FNOTQLITHOH wasv'ams'mu. o. c.

Patented'Deo. l9, I899. A. H. NEALE.

GAS ENGINE.

(Application filed Aug. 15, 1898.)

(No Model.)

4 Sheets$heet 2.

m: NORRIS vzrzns co.. momunlo. WASHINGTON. n. c:

No. 639,683. Patented D90. l9, I899.

A. H. NEALE.

GAS ENGINE.

(Application filed Aug. 15, mm.

No Model.)

4 Sheets-Sheet 3.

No. 639,683. Patented Dec. l9, I899.

A. H. NEALE. I

GAS ENGINE.

(Application filed Aug. 15, 1898.)

(No Model.) 4 Sheets8heet 4.

THE Nonms PETERS 90., PHOTO-LlTHO-, wAsHmcrrON. o. c.

NITED STATES PATENT Fries.

ARTHUR H. NEALE, OF BEAVER FALLS, PENNSYLVANIA, ASSIGNOR OF- THIRTEENTVVENTY-FOURTHS TO TIMOTHY FRENCH, OF ALLEGHENY, AND CHARLES M. CLARKE,OF PLTTSBURG, PENNSYLVANIA.

GAS-ENGINE.-

SPECIFICATION forming part of Letters Patent No. 639,683, dated December19, 1899i Application filed August 15, 1898. Serial No. 688,561. (Nomodel.)

To all whom it may concern.-

Be it known that LARTHUR H.NEALE,a citi- Zen of the United States,residing at Beaver Falls, in the county of Beaver and State ofPennsylvania, have invented or discovered a new and useful Improvementin Gas-Engines, of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, formingpart of this specification, in which- Figure 1 is a central verticalsection through my engine. Fig. 2 is a detail view of the valverod andoperating-cam. Fig. 3 is a side elevation. Fig. 4 is a sectional detailview of the igniter. Fig. 5 is a cross-section taken on the line V V ofFig. 4. Fig. 6 is an enlarged sectional view indicated by the line VI VIof Fig. 1. Fig. 7 is ahorizontal' section indicated by the line VII VIIof Fig. 1. Fig. 8 is a crosssection indicated by the line VIII VIII ofFig. 3. Fig. 9 is a detail view of a portion of the cylinder and thepiston in the lowest position. Fig. 10 is a plan view of the gas and airinlet valve and easing. Fig. 11 is a sectional view, enlarged, of theupper portion of the engine, illustrating the governor. Fig. 12 is aface view of the governor with the outer casing removed. Fig. 13 is aperspective detail view of the governor-weights. Fig. let is a similarView of the stem. Fig. 15 is a detail view of the exhaust-valve,illustrating amodified construction employing a buffer for the valve.

' Fig. 16 is a detail view of the gear-supporting stud.

I shall now describe my invention so that others skilled in the art maymanufacture and use the same.

Referring now to the drawings, 2 is the base of the engine, providedwith suitable bearings for the main shaft 3, carrying the usual flywheeland pulley, while the base is extended upwardly to form a support 4 forthe cylinder 5, secured to it by bolts 6. The cylinder is provided witha water-compartment space 7, interve'ning between the inner and outerWalls 8 9, the space extending from top to bottom of the cylinder andcompletely around it, while at top and bottom are intervening bridges10, which serve to maintain the inner and outer cylinders in rigidrelation to each other and to provide metal for insertion of the bolts.In

the top of the cylinder is formed a circular through the water-chamberby pipe 12, lead-.

ing from the base of a water-tank 13, while outlet-pipe 14, leading to ahigher level, discharges the heated water into the tank,the circulationbeinginduced by the rise of the water as it becomes heated by contactwith the cylinder. A itman 15 connects the cranks 16 with the piston 17,which is mounted within the interior of the cylinder constituting theexplosion-chamber.

For the purpose of oiling the pitman-bean ings in the piston the pin 18is made hollow by port 19 through its center at one side, with a branchport 19' leading up into the bearings. Inside the port 19 isaspring-controlled valve 20, and when the piston is at the bottom of thestroke the port 19 comes into register with port' 21 through thecylinder, into which the nozzle of an oil-can may be inserted,displacing the valve and oiling the joint.

Located centrally above the cylinder is a chamber 22, into which opensthe gas and air inlet valve 23 and from which the mixed gas and air passinto the explosion chamber downwardly through valve 24. This valve ismounted on stem 25 and is normally held closed by spring 26. A lever 27,pivoted at 28, bears on the upper end of stem 25, while the opposite endbears on the upper end of an actuating-rod 29, the lever being providedwith a set-screw 30, bearing on the upper end of rod 29, by which allwear is taken up. The rod 29 is raised at each alternate revolution bymeans of cam 31 riding under roller 32 on the lower end of the rod, thecam revolving with a toothed wheel 33 in mesh with and of double thediameter of a driving pinion-wheel 34 on the main shaft. The gear 33 andcam 31 are mounted on a bushing 35, of brass or other non frictionalmetal, surrounding a stud 36, eccentrically enlarged for taking up wear,held by a set-screw in a depending lug 37 of the main frame. Theinlet-valve 23 is mounted on the end of a stem 38, having a bearing in ahollow shell 39, inserted into a mixing-chamber 39, screwed into theheadof the cylinder 40 and reduced in diameter, so as to leave a surrounding communicating passage for the gas, while the opposite sides areopen to further facilitate their passage. Into this Valve-chamber openthe several air-ports 41, leading downwardly from the upper face of thehead, their location being concealed and protected by the gas-valvechamber 42, immediately above. In this chamber is a reciprocatingvalve-piston 43, adapted to be held open normally by pressure of spring44:, admitting gas through port from pipe 46, leading from any source ofsupply. At each side of the valve are ports 47, by which the gas isconveyed downwardly into the valvechamber 39, wherein it is commingledwith the air admitted through ports 41 and from where it escapes intochamber 22 through valve 23 and into the explosion-chamber upon thedownward stroke of the piston and opening of the valve 24. The ignitionof the mixture of gas and air is accomplished by means of the heater 42,into the center of which leads a pipe 43, communicating with theexplosion-chamber and terminating in a vertical pipe 44, havinga closedend. These pipes lead through the hollow base 45 of the heater, intowhich fuel-gas and air are admitted by pipe 46, escaping upwardlythrough openings 47 in a plate 48, the openings being inclined inwardlyand circularly disposed around the central pipe 44;. Upon the base isseta coping 49, lined with asbestos, and the base is provided withair-inlet openings 50, and when combustion of the fuel-gas takes placewithin the coping the pipe 44 is heated to a high temperature. When byupward travel of tho piston the gas is compressed and forced into thepipe 44!, it becomes sufiiciently heated te ignite and produce anexplosion, forcing the piston down, and in its upward travel theproducts of combustion will be forced out through the opened valve 24:into chamber 22 and thence tnrough valve 51 finally to exhaust-port 52.

The valve 51 is mounted on a spring-controlled stem 53 and is adapted toremain closed until forced open by pressure of the internal products ofcombustion. I have provided a buffer 51, of any suitable resilientmaterial, to absorb the shock of the valve.

Mounted in an upper extension 54 of the head is the spindle 55 of thegovernor, adapted to be retracted by spring 56 while surrounding thestem, and also journaled in the extension 54 is a sleeve 57 of thegovernor-case 58. This case is provided with a grooved wheel 59, adaptedto be driven by cable from a similar grooved wheel 60 on the main shaft,whereby the speed of the governor is regulated by the speed of theengine. Within the governor-case are mounted the weights 60, heldtogether by springs 61 attached to pins 62 at each side, the weightsbeing provided with plates 63, lapping each other at the center. Theseplates are provided with oppositely-disposed wedge-faces Get, adapted tobear upon correspondingly-shaped faces 65,- made in the enlarged end ofthe stem 55. \Vhen by reason of excessive speed the weights are thrownout by centrifugal force, the wedge-faces will force the stem forwardlyand its end will come in contact with an adjusting-spool 06, adapted tobe set on the threaded end of the stem of the valve 43, thus forcing thevalve in and partially or wholly cutting off the supply of gas, therebyreducing the speed of the engine.

An inclosing case 67 surrounds the weights and other parts of thegovernor and makes it very compact and ornamental in appearance.

The construction of my engine is very simple, compact, and cheap, and itmaybe operated continuously without getting out of order, while theadvantages over other forms of gas-engines will be appreciated by usersof this class of engines.

Changes and modifications may be made in its design or proportionsWithout departing from my invention, as I do not desire to be limited tothe exact construction shown in the drawings, but to include all suchmodifications as would be suggested to the skilled mechanic.

Having described my invention, what I claim, and desire to secure byLetters Patent, 1s

1. A gas-engine comprising a cylinder having an explosion-chamber at oneend thereof, a reservoir-chamber, a valve between the we plosion-chamberand the reservoir-chamber and means for operating said valve, a gas andair mixing chamber, and a spring-controlled valve between themixing-chamber and the reservoir-chamber adapted to open under pressureto establish communication between the two chambers.

2. A gas-engine provided with a cylinder having an explosion chamber atone end thereof, a reservoir-chamber, an intervening valve and means foroperating the same, a mixing-chamber, a spring-controlled valve betweenthe mixingchamber and the reservoir-chamber adapted to open underpressure to establish communication between the two chambers, anexhaust-valve opening outwardly from the reservoir-chamber, and anigniting device in communication with the explosion-chamber.

A gas-engine comprising a cylinder having an explosion-chamber at oneend thereof, an igniting device in communication with theexplosion-chamber, a reservoir-chamber provided with a valve openingintothe explosionchamber, a mixing-chamber, a spring-controlled valvebetween the mixing-chamber and the reservoir-chamber adapted to openunder pressure to establish communication between the two chambers, airand gas ports opening into the mixing-chamber, and an exhaust-valveleading from the reservoir-chamber.

4. Agas-enginecomprisingacylinder,apiston mounted therein with aconnecting-rod attached to the engine-crank, an explosionchamber at oneend of the cylinder, an ignitin g device communicating with theexplosionchamber,a reservoir-chamber,a valve between theexplosion-chamber and the reservoirchamber said valve having a stemprojecting upwardly through the reservoir-chamber a pivoted leveradapted to depress the valve to establish communication between thereservoir-chamber and the explosion-chamber, an actuating-rod foroperating said lever, means for imparting motion to the rod, amixingchamber, a valve between the mixing-chamber and thereservoirchamber adapted to open under pressure to establishcommunication between the two chambers, and an exhaustvalve openingoutwardly from the reservoirchamber.

5. A gas-engine comprising a cylinder having an explosion-chamber at oneend thereof, an igniting device in communication with theexplosion-chamber, a piston mounted in the cylinder, areservoir-chamber, a valve between the explosion-chamber and thereservoir-chamber having a stem projecting upwardly through thereservoir-chamber with means for opening said valve and establishingcommunication with the explosion-chamber, a gas and air mixing chamberadjacent to the reservoir-chamber, a spring-controlled valve between themixing-chamber and the reservoir chamber adapted to open under pressureto establish communication between the two chambers, air-ports openinginto the mixing-chamber from the atmosphere, gasports leading therein, agas-inlet-controlling valve, and an exhaust-valve opening outwardly fromthe reservoir-chamber.

6. A gas-engine comprising a cylinder having an explosion-chamber at oneend thereof, an igniting device in communication with theexplosion-chamber, a piston mounted in the cylinder, areservoir-chamber, a valve between the explosion-chamber and thereservoir chamber having a stem projecting through the reservoir-chamberwith means for depressing the stem and opening the valve to establishcommunication between the explosion-chamber and the reservoir-chamber, agas and air miXin g chamber adjacent to the reservoir-chamber, aspring-controlled valve between the mixing-chamber and thereservoir-chamber adapted to open under pressure to establishcommunication between the two chambers, air-ports opening into themixingchamber from the atmosphere, gas-portsleading into themixing-chamber, a gas-inlet-controlling valve, a speed-regulatinggovernor adapted to operate said last-named valve to regulate theadmission of gas to the mixingchamber, and an exhaust-valve leading fromthe reservoir-chamber.

7. A gas-engine comprising a cylinder having an explosion-chamber at oneend thereof,

an igniting device in communication with the explosion-chamber, a pistonmounted in the cylinder,a reservoir-chamber,a valve between thereservoir chamber and the explosionchamber having a stem projectingthrough the reservoir-chamber with means for depressing the stem andopening the valve to establish communication between theexplosion-chamber and the reservoir-chamber, a gas and air mixingchamber adjacent to the reservoirchamber, a spring-controlled valvebetween the mixing-chamber and the reservoir-chamber adapted to openunder pressure to establish communication between the two chambers,air-ports leading into the mixing-chamber from the atmosphere, gas-portsleading into the mixing-chamber, a gas-inlet-controlling valve providedwith an adjustable extension, a speed-regulating governor adapted tooperate such valve to regulate the ad mission of gas, and anexhaust-valve leading communicating with the mixing-chamber by 5vertical ports extending down outside the airports.

9. A gas-engine having an explosion-chamber at one end of its cylinder,in combination with a mixing-chamber formed integrally with or securedto the end of said cylinder, said mixing-chamber having air-inlets inits upper surface, a gas-chamber situate above the mixing-chamber andover said air-inlets and communicating with the mixing-chamber byvertical ports extending down outside the airports, and a valve situatein said gas-chamber for controlling the gas-inlet thereto said valvebeing adapted to be operated automatically by the governor mechanism ofthe engine.

10. A gas-engine having anexplosion-chamber at one end of its cylinder,a mixing-chamber above the end of the cylinder, a gas-chamber situateabove the mixing-chamber so as to provide a space between the top of themixing-chamber and the bottom of the gaschamber, a valve opening intothe explosionchamber and provided with a stem, a spring by which saidvalve is closed automatically, a pivoted lever lying in said spacebetween the mixing-chamber and the gas-chamber and bearing on the stemof said valve, a rod for operating said lever to open the valve, andmechanism for periodically operating the rod.

In testimony whereof I have hereunto set my hand.

ARTHUR H. NEALE, Witnesses:

Tnos. M. BROWN, 0. M. CLARKE.

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